Steyermark 97995. Study of many specimens which have accumulated since 1950 (Trelease, William & Yuncker, T. G. Piperaceae of Northern South America, 2 volumes, Univ. Illinois Press, Urbana) indicates that Peperomia tyleri merges into P. tenella var glabra, and cannot be separated from the latter. The key difference (2: 702) of the length of the leaves (“1.5-3 cm long” in P. tyleri and “mostly less than 10 mm long” in P. tenella) breaks down in many specimens examined. A number of smaller-leaved specimens of P. tyleri, such as Steyermark & Wurdack 1149, cannot be distinguished from those of P. tenella with small leaves. Both these taxa have apical ciliation of the leaf blade and the inflorescence is the same in both.

Between P. tenella var tenella and var glabra one finds all extremes of variations from stems and leaves abundantly pubescent to those nearly glabrate and with only apical ciliation of the leaves. Peperomia tyleri grades imperceptibly into the glabrate variation of P. tenella var glabra.